STPS140A Overview
The STPS140A is a high-performance ultrafast dual diode designed for efficient rectification in power supply circuits. Featuring low forward voltage drop and fast recovery time, this device reduces power losses and electromagnetic interference, enhancing overall circuit efficiency. Its robust design supports a maximum repetitive peak reverse voltage of 40V and a forward current of 14A, making it suitable for industrial and consumer electronics applications. The compact package and reliable performance make it an ideal choice for engineers focused on improving power conversion efficiency and thermal management. For detailed product information, visit IC Manufacturer.
STPS140A Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Repetitive Peak Reverse Voltage (VRRM) | 40 | V |
| Average Forward Current (IF(AV)) | 14 | A |
| Surge Non-Repetitive Forward Current (IFSM) | 150 | A |
| Forward Voltage Drop (VF) at 14A | 0.55 | V |
| Reverse Recovery Time (trr) | 35 | ns |
| Operating Junction Temperature Range (Tj) | -55 to +150 | ??C |
| Storage Temperature Range (Tstg) | -55 to +150 | ??C |
| Thermal Resistance Junction to Ambient (RthJA) | 35 | ??C/W |
STPS140A Key Features
- Ultrafast Switching: Minimizes switching losses and electromagnetic interference, improving power supply efficiency and system reliability.
- Low Forward Voltage Drop: Reduces conduction losses, leading to enhanced energy savings and lower heat dissipation in high-current applications.
- High Surge Current Capability: Supports up to 150A surge current, ensuring robustness in transient conditions and protecting circuit integrity.
- Wide Operating Temperature Range: Reliable performance from -55??C to +150??C allows use in harsh industrial environments.
Typical Applications
- Switch mode power supplies (SMPS) requiring efficient rectification to improve energy conversion and reduce thermal stress.
- Freewheeling diodes in DC motor drives to handle inductive load switching with minimal loss.
- Output rectification in battery chargers for reliable, low-loss current handling during charging cycles.
- Power factor correction circuits where fast recovery diodes help maintain high efficiency and reduce electromagnetic interference.
STPS140A Advantages vs Typical Alternatives
This device offers superior ultrafast recovery and a low forward voltage drop compared to standard diodes, resulting in lower conduction and switching losses. Its high surge current tolerance enhances durability under transient conditions. These features translate into improved efficiency, reduced heat generation, and increased reliability, making it a preferred choice over traditional rectifiers in power electronics designs.
🔥 Best-Selling Products

Texas Instruments BQ24075 Linear Battery Charger IC – 5mm x 4mm QFN Package

Texas Instruments INA219 Current Sensor Module – SOIC Package, Precision Monitoring

Texas Instruments LM4041 Precision Voltage Reference – SOT-23 Package

Texas Instruments OPA2134 Audio Op Amp – Dual, High-Performance, SOIC-8 Package
STPS140A Brand Info
The STPS140A is a product from STMicroelectronics, a global leader in semiconductor manufacturing renowned for innovation in power management and discrete components. This ultrafast dual diode is part of ST??s comprehensive portfolio addressing industrial and consumer power conversion needs. STMicroelectronics is recognized for delivering high-quality, reliable components that support energy-efficient and compact system designs worldwide.
FAQ
What is the maximum forward current rating of this diode?
The diode can handle an average forward current of 14A continuously, making it suitable for medium to high power applications where steady current flow is required without performance degradation.
🌟 Featured Products

“Buy MAX9312ECJ+ Precision Voltage Comparator in DIP Package for Reliable Performance”

QCC-711-1-MQFN48C-TR-03-1 Bluetooth Audio SoC with MQFN48C Package

0339-671-TLM-E Model – High-Performance TLM-E Package for Enhanced Functionality

1-1415898-4 Connector Housing, Electrical Wire-to-Board, Receptacle, Packaged
How fast is the recovery time of this ultrafast diode?
The reverse recovery time is approximately 35 nanoseconds, enabling rapid switching with reduced switching losses and less electromagnetic interference in high-frequency power circuits.
Can this diode operate in high-temperature environments?
Yes, it supports an operating junction temperature range from –






